Why do colds and flu occur in winter? Scientists found out the reason 

Why do most people get flu and seasonal colds when the weather turns cold, scientists have been able to find out for the first time.

It is generally known that colds or flu are more likely to occur when the weather is cold, although the germs that cause colds or flu are present in all seasons.

For this reason, there was a question in the minds of the scientists that why does the cold or flu season suddenly start when the temperature drops? Now the scientists were able to find out the biological reason.

A study by the Harvard Medical School in the United States revealed that cold air causes a weakening of the immune response that works against germs in the human nose.

The researchers said that there is a link between cold air and viral infections because even a slight drop in temperature reduces our immune system by 50%.

A study by the Harvard Medical School in the United States showed that cold air weakens the immune response that works against germs in the human nose, due to which our immune response is limited.

Also read: Risk of another pandemic: World Health Organization warns

Research has discovered that bacteria that cause respiratory diseases invade the nose and the cells in the nose fight them off.

According to the researchers, face masks can help in this matter as they not only prevent airborne germs but also keep the nose warm.

The warmer you keep your nose, the better the immune system works, he said, so the results prove another benefit of using a face mask.